Cyber Resilience

CVE-2021-32653

Low

Published: 01 June 2021

Published
01 June 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 2.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0038 59.9th percentile
Risk Priority 6 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-32653 is a low-severity Insertion of Sensitive Information Into Sent Data (CWE-201) vulnerability in Nextcloud Nextcloud Server. Its CVSS base score is 2.7 (Low).

Operationally, ranked in the top 40.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server versions prior to 19.0.11, 20.0.10, or 21.0.2 send user IDs to the lookup server even if the user has no fields set to published. The vulnerability is patched…

more

in versions 19.0.11, 20.0.10, and 21.0.2; no workarounds outside the updates are known to exist.

CWE(s)
CWE-201

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

nextcloud
nextcloud server
≤ 19.0.11 · 20.0.0 — 20.0.10 · 21.0.0 — 21.0.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-20 Tainting
addresses: CWE-201

Embedding taints allows detection when sensitive data is inserted into outbound or sent data streams.

References